|
Match
|
Document |
Document Title |
|
|
7636051 |
Status monitor apparatus
A statistical value update unit calculates the fluctuation of measurement data. A filtering processing unit extracts a normal white noise component from the fluctuation of the measurement data...
|
|
|
7623977 |
Periodic jitter (PJ) measurement methodology
Methodologies are disclosed for analyzing periodic jitter is a signal pattern using a continuous time interval analyzer. Sampled signal patterns may be correlated using time interval error...
|
|
|
7616927 |
Method and apparatus to reduce multipath effects on radio link control measurements
One or more median filter circuits are used to filter radio link control measurements corresponding to one or more radio link parameters of interest, such as received signal quality or round trip...
|
|
|
7607093 |
Displaying network segment decode information in diagrammatic form
Network analyzing systems and methods are disclosed herein for analyzing a segment of a data communications network. One example of a network analyzing system includes a network analyzer that...
|
|
|
7606335 |
Signal pulse detection scheme for use in real-time spectrum analysis
A spectrum analysis engine (SAGE) that comprises a spectrum analyzer component, a signal detector component, a universal signal synchronizer component and a snapshot buffer component. The spectrum...
|
|
|
7602843 |
Apparatus and method for transmitting/receiving channel quality information in a communication system
An apparatus and method for transmitting/receiving channel quality information (CQI) in a communication system having a frame including subchannels corresponding to the same frequency reuse factor...
|
|
|
7577227 |
Link adaption in general packet radio service networks
In one embodiment of the method of adaptively selecting an airlink coding scheme in a telecommunications network, a coding scheme operating region is determined based on a currently used coding...
|
|
|
7567613 |
Test method and apparatus for in-house wiring problems
To test for in-house wiring problems, upstream transmission profiles are tuned automatically and remotely, and reactive downstream parameter modifications indicative for in-house wiring problems...
|
|
|
7529294 |
Testing of multiple asynchronous logic domains
A digital system and a method for operating the same. The digital system includes (a) a first and a second pins, (b) first and second logic domains, and (c) first and second test pulse generator...
|
|
|
7522661 |
Method of producing a two-dimensional probability density function (PDF) eye diagram and Bit Error Rate eye arrays
A method of producing of a two-dimensional probability density function eye diagram and Bit Error Rate eye arrays generates a two-dimensional PDF array of a correlated waveform record of a data...
|
|
|
7522672 |
Digital branch calibrator for an RF transmitter
The present invention provides a digital (computational) branch calibrator which uses a feedback signal sensed from an RF transmit signal path following the combining stage of LINC circuitry of a...
|
|
|
7502429 |
Equalization for traveling wave tube amplifier nonlinearity measurements
A method and system provide the ability to measure a transmission performance characteristic. A signal is received and equalized. The equalized signal is demodulated and an ideal signal is...
|
|
|
7502430 |
Coherent averaging for measuring traveling wave tube amplifier nonlinearity
A method and system provide the ability to measure a transmission performance characteristic. A signal is received and demodulated. An ideal signal is generated from the demodulated signal. The...
|
|
|
7492816 |
Adaptive equalization methods and apparatus
A system includes a programmable transmitter device (e.g., a PLD) connected to a programmable receiver device (e.g., another PLD) via a transmission medium for transmitting a high-speed data signal...
|
|
|
7486724 |
Codec compensation techniques for channel analysis applications
Methods and apparatus to perform and/or analyze communication channels are described. In one embodiment, a test signal may be generated and transferred using a first signal route to a...
|
|
|
7466748 |
Electronic measuring device for detecting a process variable, in particular a radar or ultrasonic filling level measuring device, and a method for operating a measuring device of this type
The invention related to a method and an electronic measuring device for detecting a process variable connectable to a two-wire line ( 101 ) for providing the supply energy and for digital...
|
|
|
7443912 |
Method and system for displaying the amplitude distortions of a transmission channel
In order to display the amplitude distortions of a transmission channel, the amplitude distribution of a measurement signal of a known amplitude distribution is measured at the output of the...
|
|
|
7403560 |
Simultaneous physical and protocol layer analysis
A method and apparatus for capturing an analog waveform on a serial bus. The method comprises the steps of designating a predetermined digital data sequence, decoding a serial data signal carried...
|
|
|
7400988 |
Periodic jitter (PJ) measurement methodology
Methodologies are disclosed for analyzing periodic jitter is a signal pattern using a continuous time interval analyzer. Sampled signal patterns may be correlated using time interval error...
|
|
|
7394843 |
Spread spectrum verification circuit
A method for verifying a spread spectrum function and a spread spectrum verification circuit are provided. Comparing an output frequency of the spread spectrum function with a reference frequency...
|
|
|
7333567 |
Digital detector utilizable in providing closed-loop gain control in a transmitter
A digital detector processes at least one received digital signal to generate a squared signal, encodes the squared signal, applies first and second portions of the encoded signal to a multiplier...
|
|
|
7333537 |
System for monitoring the quality of a communications channel with mirror receivers
A system is presented that monitors the quality of a communications channel with mirror receivers. A first receiver and a second receiver, coupled in parallel with the first receiver, receive a...
|
|
|
7315574 |
System and method for generating a jittered test signal
A multi-speed jittered signal generator ( 216, 400 ) that generates a full-speed jittered signal ( 404 ) by scaling a low-speed jittered signal ( 420 ) using a frequency scaler ( 428 ). The...
|
|
|
7292656 |
Signal pulse detection scheme for use in real-time spectrum analysis
A spectrum analysis engine (SAGE) that comprises a spectrum analyzer component, a signal detector component, a universal signal synchronizer component and a snapshot buffer component. The spectrum...
|
|
|
7224752 |
System and method for real-time spectrum analysis in a communication device
A spectrum analysis engine (SAGE) that comprises a spectrum analyzer component, a signal detector component, a universal signal synchronizer component and a snapshot buffer component. The spectrum...
|
|
|
7221704 |
All digital implementation of clock spectrum spreading (dither) for low power/die area
A digital circuit configured to spread a clock train spectrum includes a clock configured to generate the clock train, and a variable divider configured to divide the frequency of the clock train...
|
|
|
7170929 |
Digital signal transmission system and method of displaying transmission condition in digital signal transmission system
A digital signal transmission system using a digital modulation system comprising a digital signal transmitter having a first digital signal processing unit and a digital signal receiver receiving...
|
|
|
7075981 |
Dynamic quality of service monitor
A subjective quality monitoring system for multimedia signal transmission systems or distributed applications software systems employs a counter which is increased if subjective quality is high and...
|
|
|
7054348 |
Using real random number generator as proof of time
A truly random sequence of bits is transmitted from a transmitter, such that a receiver can receive and store a portion of the transmission for the duration of time that the receiver is within...
|
|
|
7031381 |
Method and apparatus for reducing transmission errors caused by periodic transients in digital subscriber line (DSL) communication systems
A transient pre-emptor includes a processor configured to detect transients in a communications system. After the processor detects a transient in the communications system, it causes a data...
|
|
|
6937647 |
External perimeter monitoring system
A system for monitoring activity along a wire-bounded perimeter. The monitoring system includes a single-conductor wire which bounds a protected area. In communication with the wire at...
|
|
|
6920174 |
Method for measuring and evaluating multi-carrier signals
For measuring and evaluating multi-carrier signals the I and/or Q components obtained by demodulation are integrated across several values and are graphically shown for every single carrier or...
|
|
|
6904269 |
Signal type identification
A method of identifying a signal type uses parameters of the signal as a basis for automatic identification. A signal of interest is selected from a display of a spectral waveform for a specified...
|
|
|
6879628 |
Apparatus and method for measuring the bit error ratio of a transmission system
An apparatus and method for measuring the bit error ratio of a transmission system is provided, which can accurately report the degradation of the service quality of a line to an operator by...
|
|
|
6839515 |
Method for establishing a communication on a standby link in optical transmission facilities
A method for standby switching in optical transmission devices is provided, wherein, in addition to a working signal and a protection signal, respective control signals with information concerning...
|
|
|
6795657 |
Circuit and method for monitoring optical signal level
A circuit for monitoring an optical signal level provided in an optical receiver includes a clock extraction circuit, a noise detection circuit, and an alarm circuit. The clock extraction circuit...
|
|
|
6771699 |
Method for rapid carrier-frequency offset acquisition using a periodic training sequence
A method, encoded in a logic medium, is provided which determines a carrier-frequency offset in an output signal of a transmission system. Such a transmission system uses a periodic training...
|
|
|
6741642 |
Enhanced constellation display for VSB television signals
A modulation analyzer includes a smoothing processor which processes the coordinates of symbol landing points to generate a curve that optimally fits the landing points under a selected criterion.
|
|
|
6728311 |
Apparatus and method for creating eye diagram
Disclosed herein is an apparatus and a method for determining characteristics of a bit stream of binary pulses having measuring apparatus for sampling pulse voltage levels in excess of voltage...
|
|
|
6717982 |
Data communication apparatus
A controller of a data communication apparatus according to the present invention stores information on each successful and unsuccessful data communication, a season, a data of the week, a time,...
|
|
|
6621861 |
System to optimize signal detection
System to determine an optimal detection point associated with an incoming data stream. The data stream has an associated eye pattern that contains a data value for each of a plurality of threshold...
|
|
|
6603810 |
Combined system for calibrating receiver gain and measuring antenna impedance match and method of operation
A measurement and calibration circuit is disclosed for use in a RF transceiver comprising an antenna and a RF receiver, having a receive path, coupled to the antenna. The measurement and...
|
|
|
6597752 |
Method for detecting a dotting sequence for manchester encoded data in a deep fading environment
A method for a cellular telephone receiver to detect the presence of a dotting sequence for a Manchester encoded cellular signal in a deep fading environment, wherein the presence of a single edge...
|
|
|
6587503 |
Information processing apparatus and method
An information processing apparatus in which an eye center measuring unit determines a code judgment point from a peak timing signal supplied from a timing signal generation circuit and an...
|
|
|
6574289 |
Method for determining frame rate of a data frame in a communication system by using apriori knowledge of data frame
A method of determining a frame rate of a data frame in a communication system by using apriori knowledge of data frame. In one embodiment, a signal is received at the communication device. Then a...
|
|
|
6567463 |
Method and system for detecting analog and ADPCM links in a communication channel
A method and system for detecting analog and Adaptive Differential Pulse Code Modulation (“ADPCM”) communication links in a communication channel is described. On an illustrative embodiment,...
|
|
|
6567464 |
Fast retrain based on communication profiles for a digital modem
A digital modem for operating in a splitterless environment that supports fast retrain based on communication profiles. The modem includes a memory that stores a plurality of communication...
|
|
|
6510174 |
Apparatus, and associated method, for facilitating setting of link parameters to improve communication qualities in a radio communication system
Apparatus, and an associated method, for facilitating selection of link parameters associated with a communication signal transmitted in a radio communication system, such as a GSM (global system...
|
|
|
6480531 |
Method and apparatus of testing modems in a networking environment
A method and apparatus for use in a digital system having a plurality of modem devices from receiving de-multiplexed digital channels of information through a transmission link and providing data...
|
|
|
6477198 |
Quality cause measurement display
A quality cause measurement display is formed by generating an ideal digitally modulated RF transmitter signal. A test instrument is used to measure an overall quality measurement for the...
|